R associations I. UBV photometry and MK spectroscopy of stars in southern reflection nebulae.
Abstract
Photoelectric U B V photometry and MK spectral types are presented for stars in van den Bergh and Herbst's (1975) catalogue of southern reflection nebulae. These data are used to identify and to derive distances to 20 new R associations. The galactic distribution of these associations is briefly discussed. The effects of possible contamination of the photometry by nebular light is considered in some detail.
- Publication:
-
The Astronomical Journal
- Pub Date:
- March 1975
- DOI:
- 10.1086/111734
- Bibcode:
- 1975AJ.....80..212H
- Keywords:
-
- Astronomical Catalogs;
- Planetary Nebulae;
- Stellar Spectrophotometry;
- Ubv Spectra;
- Milky Way Galaxy;
- Spectral Reflectance;
- Stellar Spectra;
- Astronomy